RKL4401 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4401 is part of the RKL Motor Power Cables series and features a total shield with a PUR jacket in orange. This cable supports up to 5 million bending cycles and is rated for installations at ambient temperatures between -30 and +40°C, with a maximum conductor temperature of 80°C.
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Product Description:
The RKL4401 motor power cable is manufactured by Bosch Rexroth Indramat and belongs to the RKL Motor Power Cables series. Designed for servo axes, the assembly routes drive current from Indramat inverters to synchronous motors while reducing emitted electrical noise. Its flexible conductors and durable outer jacket support continuous-motion carriers used in pick-and-place gantries and modular production cells.
The cable uses the bulk cable type code INK0602, which indicates conductor cross sections and insulation compatible with Rexroth motor connectors. It has an outer diameter of 14.8 ± 1.0 mm, allowing drag-chain clamps to be sized without applying excessive compression. Mechanical endurance reaches 5 million bending cycles, supporting linear transfer systems that operate through continuous shifts. An abrasion-resistant PUR sheath protects the cores from cutting oils and wear during movement. The tinned copper braid and aluminum laminate form a total shield that contains switching-frequency harmonics and protects adjacent signal lines from interference. The orange RAL 2003 jacket improves visibility inside crowded cable trays and follows the color coding commonly used for motor power conductors.
Fixed routing inside a cabinet supports temperatures from -30 to +40 °C, while moving applications permit an operating range of -20 to +40 °C. For permanent installation, the cable can be curved to a minimum bend radius of 5 × D. Moving carriers require a larger minimum bend radius of 7.5 × D to reduce conductor fatigue during repeated motion. The copper strands may reach 80 °C during rated current flow without degrading the insulation. The permitted storage temperature ranges from -30 to +40 °C, helping prevent jacket embrittlement during transportation or storage. These temperature and bend-radius limits allow the cable to operate in typical industrial cabinets, energy chains, and articulated robotic systems.
